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Fittoniya [83]
2 years ago
5

3. Expand and simplify the expression: * (2 Points) 5 (1.2x - 4)

Mathematics
1 answer:
serious [3.7K]2 years ago
7 0

Answer:

simplified is 6x-20

Step-by-step explanation:

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Step-by-step explanation:

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Solve the equation 8x -12=5x+15
melamori03 [73]
Add <span /><span><span><span><span><span><span>12</span></span><span /></span></span><span /></span><span>12</span></span> to both sides
<span /><span><span><span><span><span><span>8</span><span>x</span><span>=</span><span>5</span><span>x</span><span>+</span><span>15</span><span>+</span><span>12</span></span><span /></span></span><span /></span><span>8x=5x+15+12</span></span>
2<span> </span>Simplify <span /><span><span><span><span><span><span>5</span><span>x</span><span>+</span><span>15</span><span>+</span><span>12</span></span><span /></span></span><span /></span><span>5x+15+12</span></span> to <span /><span><span><span><span><span><span>5</span><span>x</span><span>+</span><span>27</span></span><span /></span></span><span /></span><span>5x+27</span></span>
<span /><span><span><span><span><span><span>8</span><span>x</span><span>=</span><span>5</span><span>x</span><span>+</span><span>27</span></span><span /></span></span><span /></span><span>8x=5x+27</span></span>
3<span> </span>Subtract <span /><span><span><span><span><span><span>5</span><span>x</span></span><span /></span></span><span /></span><span>5x</span></span> from both sides
<span /><span><span><span><span><span><span>8</span><span>x</span><span>−</span><span>5</span><span>x</span><span>=</span><span>27</span></span><span /></span></span><span /></span><span>8x−5x=27</span></span>
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<span /><span><span><span><span><span><span>x</span><span>=</span><span><span><span><span>27</span><span /></span><span><span>3</span><span /></span><span><span /><span /></span></span></span></span><span /></span></span><span /></span><span>x=273</span></span>
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5 0
3 years ago
What is H in the algebraic expression H+340÷30=25
disa [49]

Answer:

H = 13.67

Step-by-step explanation:

Given:

The the algebraic expression is

H + \frac{340}{30} = 25

We need to write the above equation for h.

Solution:

H + \frac{340}{30} = 25

First we divide the fraction part of the equation by common factor 10.

H + \frac{34}{3} = 25

Subtract both side of the equation by \frac{34}{3}.

H + \frac{34}{3}-\frac{34}{3} = 25- \frac{34}{3}

H = 25- \frac{34}{3}

To write  25  as a fraction with a common denominator, multiply by \frac{3}{3}.

H = 25\times \frac{3}{3}- \frac{34}{3}

H = \frac{25\times3}{3}- \frac{34}{3}

H = \frac{75}{3}- \frac{34}{3}

H = \frac{75-34}{3}

H = \frac{41}{3}

H = 13.67

Therefore the value of H is 13.67.

7 0
3 years ago
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